Laid off this week, where do I start?

I lost my job as an operations analyst and I am not sure what to do first. I have a few weeks of savings and a rent payment due. What did you do in the first week?

Thanks for writing this out. I went through something close to it last year, and it got easier once I kept a simple log of every call and form.

I made a short list: benefits, bills, documents, and then my résumé. One thing each day kept me steady.